Touch panel

ABSTRACT

A touch panel includes electrodes and routings disposed on a single conductive layer. The electrodes and routings are connected to drivers and sensors to sense mutual capacitance changes induced by a touch among the electrodes. The touch panel includes a first electrode, a second electrode, and a first routing connected to the first electrode. The second electrode includes two sub-electrodes respectively disposed at two sides of the first routing. The first electrode has a first jigsaw section, and the second electrode has a second jigsaw section mutually intervening with the first jigsaw section in an insulated manner.

This application claims the benefit of U.S. provisional application Ser.No. 61/656,535, filed Jun. 7, 2012, the subject matter of which isincorporated herein by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention relates in general to a touch panel, and more particularlyto a touch panel with a single conductive layer and capable of sensingmulti-touch control.

2. Description of the Related Art

A touch panel, e.g., a capacitive multi-touch touch panel, by offering auser with a convenient, friendly and intuitive operation interface,prevails in various consumer electronic devices, portable devices andhandheld devices, e.g. remote controllers, mobile handsets, digitalcameras, video recorders/players, portable pads and touch screens.

A multi-touch touch panel includes multiple driving electrodes andmultiple sensing electrodes distributed at a touch control region. Thedriving electrodes are respectively connected to different drivers, andthe sensing electrodes are respectively connected to different sensors.The drivers rapidly and periodically drive the driving electrodesconnected thereto in turn. When a position of a user touch is proximateto a particular driven driving electrode and a particular sensingelectrode, mutual capacitance between the driving electrode and thesensing electrode changes. According to the position of the drivendriving electrode and the position of the sensing electrode where thecapacitance change occurs, the position of the user touch can bederived.

In a conventional touch panel, to analyze a touch position, drivingelectrodes and sensing electrodes are horizontally and vertically placedin a staggered arrangement. As the driving electrodes and the sensingelectrodes are respectively formed at two different transparentconductive layers with higher cost and a greater thickness, theprevalence and applications of the touch control operation interface arehindered. Further, since an image displayed by a display panelintegrated with the conventional touch panel needs to penetrate througha larger number of conductive layers, display brightness and quality aredegraded.

SUMMARY OF THE INVENTION

To mitigate setbacks of a touch panel formed by multiple conductivelayers, driving electrodes and sensing electrodes may be disposed at asingle conductive layer, with routings and pads, connecting the drivingelectrodes and sensing electrodes to drivers and sensors, also formed onthe same conductive layer. However, the routings and driving electrodesof different drivers as well as the routings and sensing electrodes ofdifferent sensors are mutually insulated. Therefore, shapes andarrangements of the sensing electrodes and the driving electrodes aswell as directions of the routings all need to be appropriatelyarranged.

A touch panel is provided by the present invention. The touch panelincludes a first electrode, a first routing, a second electrode, twosecond routings and a third electrode, all of which are formed on asingle conductive layer. The first routing is connected to the firstelectrode. The second electrode includes two second sub-electrodesrespectively disposed at two sides of the first routing, and isinsulated from the first routing. The two second routings arerespectively connected to the two second sub-electrodes to mutuallyconnect the two second sub-electrodes. The third electrode is insulatedfrom the first electrode and the second electrode. Two among of thefirst, second and third electrodes are respectively connected to adriver and a sensor.

The two second routings respectively extend along the two sides of thefirst routing. The touch panel further includes a first pad and a secondpad, both of which are formed on the conductive layer. Two ends of thefirst routing are respectively connected to the first pad and the firstelectrode, and the two second routings connect the second pad to the twosecond sub-electrodes along the two sides of the first routing,respectively. The first electrode includes two first sub-electrodes andone other first routing is provided. The two first routings arerespectively connected to the two first sub-electrodes. The two secondsub-electrodes are spaced by an insulating first gap, and the firstrouting extends along the first gap.

Preferably, the touch panel further includes a fourth electrode, whichis also formed on the foregoing conductive layer. The second electrodeis located between the first electrode and the fourth electrode. Thefourth electrode includes two fourth sub-electrodes spaced by a secondgap, and the first routing and the two second routings extend along thesecond gap.

The touch panel comprises a touch control region and a pad region. Theelectrodes of the touch panel are formed at the touch control region,and the pads are formed at the pad region. The routings, e.g., theforegoing first and second routings, of all electrodes pass through asame side of the touch control region to extend to the pad region toconnect the electrodes to the pads. Alternatively, the routings ofparticular electrodes and the routings of some other electrodesrespectively pass through two different sides of the touch controlregion to extend to the pad region. Alternatively, in addition to thefirst to third electrodes, the touch panel further includes a fourthelectrode and a fourth routing. The first electrode is located betweenthe second electrode and the fourth electrode. The first routing passesthrough a first side of the touch control region to extend to the padregion, and the fourth routing passes through a second side of the touchcontrol region to extend to the pad region, with the first and secondsides of the touch control region being opposite sides. When the firstrouting passes through the first side along a first direction, thefourth routing passes through the second side along an oppositedirection to the first direction.

Preferably, the first electrode and the third electrode may be a pair oftessellation electrodes, and/or one of the second sub-electrodes and thethird electrode may be a pair of tessellation electrodes. Thetessellation electrode pair includes a first tessellation electrode anda second tessellation electrode. A branch exists between two firstpoints at a first side of the first tessellation electrode, and has aperimeter between the two first points greater than a linear distancebetween the two first points. A dent is provided between two secondpoints at a second side of the second tessellation electrode, and has aperimeter between the two second points greater than a linear distancebetween the two second points. The branch intervenes with the dent witha gap in between.

The two second routings are respectively located at two different sidesof the first electrode, and extend along the two sides of the firstelectrodes. For another example, in addition to the first to thirdelectrodes, the touch panel may further include a fourth electrode. Thefirst electrode is located between the second electrode and the fourthelectrode, and the fourth electrode includes two fourth sub-electrodesrespectively connected to the two second routings.

Preferably, the pad region is formed by multiple staggered pads at theforegoing conductive layer. The pads include a first pad and a secondpad. The first pad is connected to the first electrode via the firstrouting, and the second pad is connected to the two secondsub-electrodes via the two second routings. That is, the two secondsub-electrodes disposed at the two sides of the first routing mayrespectively be connected to the same second pad via the two secondroutings at the two sides of the first routing. Similarly, when thethird electrode and a fourth electrode are respectively located at twodifferent sides of the first routing, the third electrode and the fourthelectrode may respectively be connected to the same third pad via athird routing and a fourth routing. The third and fourth routings arelocated at the same side of the first routing, and the fourth routingand the fourth electrode are located at the other side of the firstrouting.

Preferably, the touch panel includes one or multiple floating dummyelectrodes formed at the conductive layer. The floating dummy electrodesare located between two among the first, second and third electrodes andinsulated from the same.

A touch panel is further provided. The touch panel includes a firstelectrode and a second electrode, which are formed at a singleconductive layer and respectively connected to a driver and a sensor.The first electrode has a first border including a first jigsaw sectionextended between two first points at the first border. The secondelectrode has a second border including a second jigsaw sectionextending between two second points at the second border. The secondjigsaw section protrudes at a connecting line between the two firstpoints along the conductive layer, and the first jigsaw section alsoprotrudes between the two second points.

Preferably, the touch panel further includes one or multiple floatingdummy electrodes. The dummy electrodes are formed at the foregoingconductive layer, located between the first and second electrodes, andinsulated from the same. The border of the second electrode furtherincludes a fourth jigsaw section. The touch panel further includes athird electrode formed at the foregoing conductive layer. The thirdelectrode has a third border including a third jigsaw section extendingbetween two third points at the third border. The fourth jigsaw sectionprotrudes between two third points.

The above and other aspects of the invention will become betterunderstood with regard to the following detailed description of thepreferred but non-limiting embodiments. The following description ismade with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows an electrode arrangement according to an embodiment of thepresent invention.

FIG. 2 and FIG. 3 show a touch panel according to an embodiment of thepresent invention.

FIG. 4 to FIG. 6 show a touch panel according to an embodiment of thepresent invention.

FIG. 7 and FIG. 8 show a touch panel according to an embodiment of thepresent invention.

FIG. 9 to FIG. 11 show a touch panel according to an embodiment of thepresent invention.

FIG. 12 and FIG. 13 show a touch panel according to an embodiment of thepresent invention.

FIG. 14 to FIG. 16 show electrodes according to another embodiment ofthe present invention.

FIG. 17 and FIG. 18 show a touch panel according to an embodiment of thepresent invention.

FIG. 19 shows a touch panel according to an embodiment of the presentinvention.

FIG. 20 shows a touch panel according to an embodiment of the presentinvention.

FIG. 21 shows a touch panel according to an embodiment of the presentinvention.

FIG. 22 shows pads and routings according to an embodiment of thepresent invention.

FIG. 23 shows pads and routings according to an embodiment of thepresent invention.

FIG. 24 shows a schematic diagram of dummy electrodes according to anembodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 shows a schematic diagram of an electrode arrangement accordingto an embodiment of the present invention. The electrode arrangementincludes a plurality of electrodes D[1, 1], D[1, 2], D[2, 1] and D[i, j]to D[Nr, j] as driving electrodes, and a plurality of electrodes S[1,1], S[1, 2], S[2, 1] and S[i, j] to S[Nr−1, j] as sensing electrodes,where Nr is an integer. The electrodes D[i, j] and the electrodes S[i,j] are in a grid arrangement in an mutually insulated manner at a singleconductive layer. Borders of the electrode S[i, j] are spaced by aninsulation gap from neighboring electrodes D[i, j−1], D[i, j], D[i+1, j]and D[i+1, j−1]. Similarly, borders of the electrode D[i, j] are spacedby an insulation gap from neighboring electrodes S[i−1, j], S[i−1, j+1],S[i, j+1] and S[i, j].

To analyze a touch position, at least one of the four neighboringdriving electrodes D[i, j] of each of the sensing electrodes S[i, j] isconnected to different drivers. Assume that a particular electrode S[i1,j1] is neighboring to the electrodes D[i1, j1−1], D[i1, j1], D[i1+1, j1]and D[i1+1, j1−1], and another electrode S[i2, j2] is neighboring to theelectrodes D[i2, j2−1], D[i2, j2], D[i2+1, j2] and D[i2+1, j2−1], wherei1 is not equal to i2, and/or j1 is not equal to j2. One of theelectrodes D[i1, j1−1], D[i1, j1], D[i1+1, j1] and D[i1+1, j1−1] and oneof the electrodes D[i2, j2−1], D[i2, j2], D[i2+1, j2] and D[i2+1, j2−1]may connect to two different drivers, i.e., two drivers that are notsimultaneously driven. Based on the above principle, the driversconnected to the electrodes D[i, j] and the drivers connected to theelectrodes S[i, j] are allotted.

In an exemplary embodiment of a driving-sensing arrangement, theelectrode D[i, j] may be connected to a driver DU[i+Nr*mod(j+1, 2) (notshown, where mod(p, d) is a remainder of dividing p by d), the electrodeS[i, j] may be connected to a sensor SU[Ns*mod(i+1, 2)+mod(j−1, Ns)+1],where Ns is an integral constant. Under the above arrangement, theelectrodes D[1, 1] to D[Nr, 1] are respectively connected to an Nrnumber of different drivers DU[1] to DU[Nr], the electrodes D[1, 2] toD[Nr, 2] are respectively connected to another Nr number of differentdrivers DU[Nr+1] to D[2*Nr], the electrodes D[1, 3] to D[Nr, 3] are alsorespectively connected to the drivers DU[1] to DU[Nr] as the electrodesD[1, 1] and D[Nr, 1], the electrodes D[1, 4] to D[Nr, 4] are alsorespectively connected to the drivers DU[Nr+1] to D[2*Nr] as theelectrodes D[1, 2] and D[Nr, 2], and so forth. The electrodes S[1, 1] toS[1, Ns] are respectively connected to the sensors SU[1] to SU[Ns], theelectrodes S[1, Ns+1] to S[1, 2*Ns] are also respectively connected tothe sensors SU[1] to SU[Ns], and so forth. The electrodes S[2, 1] toS[2, Ns] are respectively connected to the sensors SU[Ns+1] to SU[2*Ns],the electrodes S[3, 1] to S[3, Ns] are also respectively connected tothe sensors SU[1] to SU[Ns], and so forth.

The driving-sensing arrangement of the driving electrodes/drivers andthe sensing electrodes/sensors is not limited to the above exemplarydriving-sensing arrangement—many other driving-sensing arrangements forachieving position analysis of a touch position are available. Forexample, the electrode D[i, j] may be connected to the driverDU[i+Nr*mod(j+1, 2)], and the electrode S[i, j] may be connected to thesensor SU[mod(i,2)*(mod(j−1, Ns)+1)+mod(i+1, 2)*(2*Ns-mod(j−1, Ns))].For example, the electrodes S[1, 1] to S[1, Ns] are respectivelyconnected to the sensors SU[1] to SU[Ns], and the electrodes S[2, 1] toS[2, Ns] are respectively connected to the sensors SU[2*Ns] to SU[Ns+1];the electrodes S[3, 1] to S[3, Ns] are also connected to the sensorsSU[1] to SU[Ns], and the electrodes S[4, 1] to [4, Ns] are againconnected to the sensors SU[2*Ns] to SU[Ns+1].

In a driving-sensing arrangement of an alternative exemplary embodiment,the electrode D[i, j] may be connected to the driver DU[i], and theelectrode S[i, j] may be connected to the sensor SU[j]. That is, theelectrodes D[i, j1] and D[i, j2] at a same row but different columns arerespectively connected to the same driver DU[i], and the electrodesD[i1, j] and D[i2, j] at a same column but different rows arerespectively connected to different drivers DU[i1] and DU[i2]. Incontrast, the electrodes S[i, j1] and S[i, j2] at a same row butdifferent columns are respectively connected to different sensors SU[j1]and SU[j2], and the electrodes S[i1, j] and S[i2, j] at a same columnbut different rows are connected to the same sensor SU[j].

In a driving-sensing arrangement of another exemplary embodiment, theelectrodes S[i, j] is connected to the sensor SU[j], the electrode D[i,j] is connected to the driver DU[mod(j,2)*i+mod(j−1,2)*(Nr−i+1)]. Thatis, the electrodes D[1, j], D[2, j] to D[Nr, j] at odd columns arerespectively connected to the drivers DU[1, j], DU[2, j] to DU[Nr, j];the electrodes D[1, j], D[2, j] to D[Nr, j] at even columns arerespectively connected to the drivers DU[Nr, j], DU[Nr−1, j] to DU[1,j].

FIG. 2 shows a touch panel 10 a substantially implementing the electrodelayout and arrangement in FIG. 1 according to an embodiment of thepresent invention. The touch panel 10 a includes a touch control region12 a and a pad region 14 a. The touch control region 12 a includeselectrodes Da[1, j] to Da[Nr, j] and electrodes Sa[1, j] to Sa[Nr−1, j],which are all disposed at a single conductive layer and respectivelyserve as the electrodes D[1, j] to D[Nr, j] and the electrodes S[1, j]to S[Nr−1, j] in FIG. 1. In the touch panel 12 a, each electrode Sa[iu,j] of the electrodes Sa[1, j] to Sa[Na−2, j] includes two electrodesSa1[iu, j] and Sa2[iu, j], where Na is a value between 1 and Nr. Theelectrodes Sa1[iu, j] and Sa2[iu, j] may be regarded as twosub-electrodes of the electrode Sa[iu, j]. Each electrode Sa[id, j] ofthe electrodes Sa[Na+1, j] to Sa[Nr−1, j] comprises two electrodesSa1[id, j] and Sa2[id, j]. Similarly, each electrode Da[iu, j] of theelectrodes Da[1, j] to Da[Na−2, j] comprises two electrodes Da1[iu, j]and Da2[iu, j], and each electrode Da[id, j] of the electrodes Da[Na+1,j] to Da[Nr, j] comprises two electrodes Da1[id, j] and Da2[id, j].

The two electrodes Sa1[iu, j] and Sa2[iu, j] may be regarded as two leftand right halves of the electrode Sa[iu, j], and are spaced by aninsulation gap extending along the y-axis to accommodate a routing. Theelectrodes Sa1[id, j] and Sa2[id, j] are spaced by a routable gapextending along the y-axis. Similarly, the electrodes Da1[iu, j] andDa2[iu, j] are spaced by an insulation gap extending along the y-axis toaccommodate a routing, and the electrodes Da1[id, j] and Da2[id, j] arealso spaced by a routable gap extending along the y-axis. Incontinuation of the embodiment in FIG. 2, FIG. 3 shows directions of theroutings of the electrodes among the electrodes Sa[1, j] to Sa[Nr−1, j].The electrodes Sa1[iu, j] and Sa2[iu, j] and the electrodes Sa1[iu2, j]and Sa2[iu2, j] may be two arbitrary pairs of electrodes among theelectrodes Sa1[1, j] and Sa2[1, j] to the electrodes Sa1[Na−2, j] andSa2[Na−2, j], and iu<iu2<(Na−1). The gap between the electrodes Sa1[iu,j] and Sa2[iu, j] and the gap between the electrodes Sa1[iu2, j] andSa2[iu2, j] may extend along the y-axis to form a channel Hu[j] with awidth in a distance d with respect to the x-axis. The electrode Sa[Na−1,j] is connected to a routing La[Na−1, j]. The routing La[Na−1, j]upwardly extends along the positive y-axis, and passes through an upperside of the touch region 12 a to enter the pad region 14 a (FIG. 2). Inother words, the electrodes Sa1[iu, j] and Sa2[iu, j] are respectivelydisposed at left and right sides of the routing La[Na−1, j].

The touch region 12 a further includes routings La1[iu, j], La1[iu2, j]to La1[Na−2, j] and routings La2[iu, j], La2[iu2, j] to La2[Na−2, j],which respectively connect the electrodes Sa1[iu, j], Sa1[iu2, j] toSa1[Na−2, j] to the electrodes Sa2[iu, j], Sa[iu2, j] to Sa2[Na−2, j].Since the electrodes Sa1[Na−2, j] and Sa2[Na−2, j] are respectivelylocated at the two sides of the routing La[Na−1, j], the routingsLa1[Na−2, j] and La2[Na−2, j] also respectively upwardly extend (i.e.,towards the positive y direction) at the left and right sides of therouting La[Na−1, j] along the channel Hu[j], and pass through the upperside of the touch control region 12 a to enter the pad region 14 a. Inthe pad region 14 a, the routings La1[Na−2, j] and La2[Na−2, j] may beconnected, in a way that the electrodes Sa1[Na−2, j] and Sa2[Na−2, j]are connected to form the same electrode Sa[Na−2, j] (FIG. 2).

Positions of y coordinates of the electrodes Sa1[iu2, j] and Sa2[iu2, j]are higher than those of the electrodes Sa1[Na−1, j] and Sa2[Na−1, j],and so the routings La1[iu2, j] and La2[iu2, j] of the electrodesSa1[iu2, j] and Sa2[iu2, j] upwardly extend at the left and right sidesof the routings La1[Na−2, j] and La2[Na−2, j] along the channel Hu[j],and pass through the upper side of the touch control region 12 a toenter the pad region 14 a and become mutually connected. Similarly,positions of y coordinates the electrodes Sa1[iu, j] and Sa2[iu, j] arehigher than those of the electrodes Sa1[iu2, j] and Sa2[iu2, j], and sothe routings La1[iu, j] and La2[iu, j] of the electrodes Sa1[iu, j] andSa2[iu, j] upwardly extend at the left and right sides of the routingsLa1[iu2, j] and La2[iu2, j] along the channel Hu[j], and pass throughthe upper side of the touch control region 12 a to enter the pad region14 a and become mutually connected. In other words, for the electrodesSa[1, j] to Sa[Na−1, j] having routings that extend upwards, theroutings connected to these electrodes are located farther from a centerof the channel Hu[j] as the positions of y coordinates of theseelectrodes get higher. With the above routing layout, the routings arekept free from intersecting one another in cross-bridge connections, andcan thus be formed at a single conductive layer with the electrodes.

In FIG. 3, with reference to FIG. 2, the electrodes Sa1[id, j] andSa2[id, j] and the electrodes Sa1[id2, j] and Sa2[id2, j] may be twoarbitrary pairs of electrodes among the electrodes Sa1[Na+1, j] andSa2[Na+2, j] to the electrodes Sa1[Nr−1, j] and Sa2[Nr−1, j], whereNa<id<id2. A gap extending along the y-axis is formed between theelectrodes Sa1[id, j] and Sa2[id, j] and between the electrodes Sa1[id2,j] and Sa2[id2, j], and the gaps mutually connect along the y-axis toform a channel Hd[j]. The electrode Sa[Na, j] is connected to a routingLa[Na, j]. The routing La[Na, j] downwardly extends, i.e. towards thenegative y-axis, along the channel Hd[j] to pass through a lower side(FIG. 2) of the touch control region 12 a, and upwardly extends alongthe left or right side of the touch control region 12 outside the touchcontrol region 12 a to enter the pad region 14 a, as shown in FIG. 2

The touch control region 12 a further includes routings La1[Na+1, j] toLa1[id, j] and La1[id2, j], and routings La2[Na+1, j] to La2[id, j] andLa2[id2, j], which are respectively connected to the electrodesSa1[Na+1, j] to Sa1[id, j]and Sa1[id2, j], and the electrodes Sa2[Na+1,j] to Sa2[id, j] and Sa2[id2, j]. Since the electrodes Sa1[Na+1, j] andSa2[Na+1, j] are located at the left and right sides of the routingLa[Na, j], the routings La1[Na+1, j] and La2[Na+1, j] respectivelydownwardly extend at the two sides of the routing La[Na, j] along thechannel Hd[j] to pass through the lower side of the touch control region12 a, and wind along a border of the touch control region 12 a, e.g.,the left or right side of the touch control region 12 a, to reach thepad region 14 a. In the pad region 14 a, the routings La1[Na+1, j] andLa2[Na+1, j] are mutually connected to form the electrode Sa[Na+1, j](FIG. 2).

When positions y coordinates of the electrodes Sa1[id, j] and Sa2[id, j]are lower than those of the electrodes Sa1[Na+1, j] and Sa2[Na+1, j],the routings La1[id, j] and La2[id, j] of the electrodes Sa1[id, j] andSa2[id, j] downwardly extend at left and right sides of the routingsLa1[Na+1, j], La[Na, j] and La2[Na+1, j] along the channel Hd[j], andexits the touch control region 12 a from the lower side of the touchcontrol region 12 a to wind to the pad region 14 a. Similarly, aspositions of y coordinates the electrodes Sa1[id2, j] and Sa2[id2, j]are lower than those of the electrodes Sa1[id, j] and Sa2[id, j], theroutings La1[id2, j] and La2[id2, j] of the electrodes Sa1[id2, j] andSa2[id2, j] extend at the left and right sides of the routings La1[id,j] and La2[id, j] in the channel Hd[j] to downwardly extend, passthrough the lower side of the touch control region 12 a to wind into thepad region 14 a, and become mutually connected. In short, for theelectrodes Sa[Na, j] to Sa[Nr−1] that downwardly extend, the routingsconnected to these electrodes are located farther from a center of thechannel Hd[j] as the positions of y coordinates of these electrodes getlower. As such, different routings do not intervene with one another.

In the pad region 14 a, the routings La1[iu, j] and La2[iu, j], La1[iu2,j] and La2[iu2, j] to La1[Na−2, j], La2[Na−2, j], La[Na−1, j], La[Na,j], La[Na+1, j] and La2[Na+1, j] to La1[id, j] and La2[id, j], andLa[id2, j] and La2[id2, j] may respectively connect to the same ordifferent pads P, so as to connect the corresponding electrodes to thesame or different sensors, as in the previously discusseddriving-sensing arrangement in FIG. 1.

As shown in FIG. 3, an insulation gap 16 may be formed in the electrodeSa[Na−1, j]. Along the x-axis, the gap 16 extends by a distance d0associated with the distance d to render the shape, area andelectromagnetic characteristics of the electrode Sa[Na−1, j] toapproximate those of the electrode Sa[Na−2, j]. Similarly, the design ofthe electrode Sa[Na, j] may also be similar to that of the electrodeSa[Na−1, j]. The routing layout of the electrodes Da[1, j] to Da[Nr, j]may follow that of the electrodes Sa[1, j] to Sa[Nr−1]. In simple, inthe embodiment in FIG. 2 and FIG. 3, each of the electrodes at the upperhalf of the touch control region 12 a may be divided into twosub-electrodes, such that the corresponding routings are allowed to passthrough and exit from the upper side of the touch control region 12 aalong the channel between the two sub-electrodes to extend to the padregion 14 a. Each of the electrodes at the lower half of the touchcontrol region 12 a may also be divided into two sub-electrodes, suchthat the corresponding routings are allowed to pass through and exitfrom the lower side of the touch control region 12 a along the channelbetween the two sub-electrodes to wind along the periphery of touchcontrol region 12 a to reach the pad region 14 a.

FIGS. 4 to 6 show a touch panel 10 b according to an embodiment of thepresent invention. The touch panel 10 b includes a touch control region12 b and a pad region 14 b. The touch control region 12 b includeselectrodes Db[1, j] to Db[Nr, j] and electrodes Sb[1, j] to Sb[Nr−1, j],which are all formed on a single conductive layer and respectively serveas the electrodes D[1, j] to D[Nr, j] and the electrodes S[1, j] toS[Nr−1, j] in FIG. 1.

As previously discussed with reference to FIG. 1, in an embodiment ofthe sensing-driving arrangement, the electrode S[i, j] may be connectedto the sensor SU[Ns*mod(i+1,2)+mod(j−1, Ns)+1]. That is, when the indexi is an odd number (2*k−1), the electrode S[(2*k−1), j] is connected tothe sensor SU[mod(j−1, Ns)+1]; when the index i is an even number (2*k),the electrode S[2*k, j] is connected to the sensor SU[mod(j−1,Ns)+1+Ns]. In other words, the electrodes S[1, j], S[3, j], S[5, j] . .. at the odd rows are connected to the same sensor, and the electrodesS[2, j], S[4, j], S[6, j] at the even rows are connected to the samesensor—the touch panel 10 b is capable of implementing such embodiment.As shown in FIG. 5, in the touch panel 10 b, two arbitrary even-rowelectrodes Sb[2*k, j] and Sb[2*k2, j] among the electrodes Sb[1, j] toSb[Nr-j] are connected in series by a routing Lb[j]. The odd-rowelectrode Sb[2*k2−1, j] is formed by two sub-electrodes Sb1[2*k−1, j]and Sb2[2*k−1, j]. The electrodes Sb1[2*k−1, j] and Sb2[2*k−1, j] arespaced by a gap extending along the y-axis, and the routing Lb[j] passesthrough the gap. That is to say, the electrodes Sb1[2*k−1, j] andSb2[2*k−1, j] are respectively located at two sides of the routingLb[j]. Among the electrodes Sb[1, j] to Sb[Nr−1, j], two arbitraryodd-row electrodes Sb1[2*k−1, j] and Sb1[2*k2−1, j] are connected inseries by a routing Lb1[j], and two arbitrary odd-row electrodesSb2[2*k−1, j] and Sb2[2*k2−1, j] are connected in series by a routingLb2[j].

As shown in FIG. 5, when passing by an arbitrary odd-row electrodeSb[2*k, j], the routings Lb1[j] and Lb2[j] are located at two differentsides of the electrode Sb[2*k, j], and upwardly extend along theelectrode Sb[2*k, j] to reach the electrodes Sb1[2*k−1] and Sb2[2*k−1,j]. Between the electrodes Sb[2*k−1] and Sb[2*k], the routings Lb1[j]and Lb2[j] respectively extend along two different sides of the routingLb[j]. The routings Lb[j], Lb1[j] and Lb2[j] pass through the upper sideof the touch control region 12 b to extend to the pad region 14 b. Assuch, the even-row electrodes Lb[2*k, j] are allowed to connect to thesame pad via the routing Lb[j] to further connect to the same sensor.The routings Lb1[j] and Lb2[j] may be jointly connected to another pad,so that the electrode Sb[2*k−1, j] formed by the connected odd-rowelectrodes Sb1[2*k−1, j] and Sb2[2*k−1, j] may be connected to anothersensor. In an embodiment, an loop-like insulation gap may be defined inthe even-row electrode Sb[2*k, j], as shown in the electrode Sa[Na−1, j]in FIG. 3.

As shown in FIGS. 4 to 6, an arbitrary electrode Db[i, j] among theelectrodes Db[1, j] to Db[Nr−1, j] is formed by two electrodes Db1[i, j]and Db2[i, j]. The electrodes Db1[i, j] and Db2[i, j] are spaced by agap extending along the y-axis, and the gap between the electrodesDb1[i, j] and Db2[i, j] to the gap between the electrodes Db1[Nr−1, j]and Db2[Nr−1, j] become connected to form a channel Hb[j] (FIG. 6)extending along the y-axis. The touch panel 10 b includes a routingWb[Nr, j] connected to the electrode Db[Nr, j]. The routing Wb[Nr, j]upwardly extends along the channel Hb[j], and passes through the upperside of the touch control region 12 b to extend to the pad region 14 b.For the electrode pairs Db1[i, j] and Db2[i, j], the touch panel 10 balso provides routings Wb1[i, j] and Wb2[i, j]. The routing Wb1[i, j] isconnected to the electrode Db1[i, j], and the routing Wb2[i, j] isconnected to the electrode Db2[i, j]. The routings Wb1[i, j] and Wb2[i,j] upwardly extend at the two sides of the routing Wb[Nr, j] along thechannel Hb[j], pass through the upper side of the touch control region12 b to extend to the pad region 14 b, and become mutually connected inthe pad region 14 b to connect the electrodes Db1[i, j] and Db2[i, j]into one same electrode Db[i, j]. As shown in FIG. 6, among theelectrodes Db[1, j] to Db[Nr−1, j], assuming that one electrode Db[i2,j] (formed by electrodes Db1[i2, j] and Db2[i2, j]) is arranged betweenthe electrodes Db[i, j] and Db[Nr−1, j], the routing Wb1[i2, j] of theelectrode Db[i2, j] is clamped between the routings Wb1[i, j] and Wb2[i,j] to upwardly extend along the channel Hb[j], and the other routingWb2[i2, j] upwardly extends between the routings Wb2[Nr−1, j] and Wb2[i,j] along the channel Hb[j]. In other words, for the electrodes Sa[1, j]to Sa[Na−1, j] having routings that travel upwards, since the routingsof the electrodes Db[1, j] to Db[Nr, j] upwardly extend, the routingsconnected to these electrodes are located farther from a center of thechannel Hb[j] as the positions of y coordinates of these electrodes gethigher. Thus, the routings are free from mutual intervention, and theroutings and electrodes are allowed to be fabricated on a singleconductive layer.

FIGS. 7 and 8 show a touch panel 10 c implementing the electrode layoutand arrangement in FIG. 1 according to an embodiment of the presentinvention. The touch panel 10 c includes a touch control region 12 c anda pad region 14 c. The touch control region 12 c includes electrodesDc[1, j] to Dc[Nr, j] and electrodes Sc[1, j] to Sc[Nr−1, j], which areall disposed at a single conductive layer and respectively serve as theelectrodes D[1, j] to D[Nr, j] and the electrodes S[1, j] to S[Nr−1, j]in FIG. 1.

In the touch panel 10 c, an arbitrary electrode Dc[i, j] among theelectrodes Dc[1, j] to Dc[Nr−1, j] is formed by two electrodes Dc1[i, j]and Dc2[i, j] spaced by a gap extending along the y-axis. The gapbetween the electrodes Dc1[i, j] and Dc2[i, j] is connected with a gapbetween the electrodes Dc1[Nr−1, j] and Dc2[Nr−1, j], and so theroutings of the electrodes Dc[1, j] to Dc[Nr−1, j] may be arranged withreference to FIG. 6. Similarly, an arbitrary electrode Sc[i, j] amongthe electrodes Sc[1, j] to Sc[Nr−2, j] is formed by two electrodesSc1[i, j] and Sc2[i, j] spaced by a gap extending along the y-axis. Thegap between the electrodes Sc1[i, j] and Sc2[i, j] is connected with agap between the electrodes Sc1[Nr−2, j] and Sc2[Nr−2, j] to form achannel Hc[j] as shown in FIG. 8.

In the touch panel 10 c, the electrode Sc[Nr−1, j] is connected to arouting Lc[Nr−1, j]. The routing Lc[Nr−1, j] upwardly extends along thechannel Hc[j], and passes through the upper side of the touch controlregion 12 b to reach the pad region 14 c. The electrodes Sc1[i, j] andSc2[i, j] are respectively connected to the routings Lc1[i, j] andLc2[i, j]. The routings Lc1[i, j] and Lc2[i, j] upwardly extend at twosides of the routing Lc[Nr−1, j], pass through the upper side of thetouch control region 12 c to extend to the pad region 14 c, and mutuallyconnect in the pad region 14 c to connect the electrodes Sc1[i, j] andSc2[i, j] into one same electrode Sc[i, j]. As shown in FIG. 8, amongthe electrodes Sc[1, j] and Sc[Nr−2, j], assuming that one electrodeSc[i2, j], comprising two electrodes Sc1[i2, j] and Sc2[i2, j]), isarranged between the electrodes Sc[i, j] and Sc[Nr−1, j], the routingLc1[i2, j] of the electrode Sc[i2, j] upwardly extends between theroutings Lc1[i, j] and Lc1[Nr−1, j] along the channel Hc[j], whereas theother routing Lc2[i2, j] upwardly extends between the routings Lc2[Nr−1,j] and Lc2[i, j] along the channel Hc[j]. As such, different routingsare kept free from mutually intersecting.

FIGS. 9 to 11 show a touch panel 10 d according to an embodiment of thepresent invention. The touch panel 10 d, similar to the touch panel 10 ain FIG. 2, includes a touch control region 12 d and a pad region 14 d.The touch control region 12 d includes electrodes Dd[1, j] to Dd[Nr, j]and electrodes Sd[1, j] to Sd[Nr−1, j], which are disposed at a singleconductive layer and respectively serve as the electrodes Da[1, j] toDa[Nr, j] and the electrodes Sa[1, j] to Sa[Nr−1, j] in FIG. 1. Similarto the touch panel 10 a, in the touch panel 10 d, each electrode Sd[iu,j] of the electrodes Sd[1, j] to Sd[Na−2, j] is formed by two electrodesSd1[iu, j] and Sd[iu, j], and each electrode Sd[id, j] of the electrodesSd[Na+1, j] to Sd[Nr−1, j] is also formed by two electrodes Sd1[id, j]and Sd2[id, j]. Each electrode Dd[iu, j] of the electrodes Da[1, j] toDd[Na−2, j] includes two electrodes Dd1[iu, j] and Dd2[iu, j], and eachelectrode Dd[id, j] of the electrodes Dd[Na+1, j] to Dd[Nr, j] is formedby two electrodes Dd1[id, j] and Dd2[id, j].

As shown in FIG. 10, the electrode Sd[Na−1, j] is connected to a routingLd[Na−1, j]. The two electrodes Sd1[iu, j] and Sd2[iu, j], regarded astwo left and right sub-electrodes of the electrode Sd[iu, j], are spacedby an insulation gap extending along the y-axis, and are respectivelyconnected to two routings Ld1[iu, j] and Ld2[iu, j]. The insulation gapsof the electrodes Sd[1, j] to Sd[Na−2, j] are connected to form achannel that upwardly extends, i.e. towards the positive y direction.The routing Ld[Na−1, j] upwardly extends along the channel and entersthe pad region 14 d via the upper side of the touch control region 12 d.The routings Ld1[iu, j] and Ld2[iu, j] upwardly extend in parallel atthe two sides of the routing Ld[Na−1, j], pass through the upper side ofthe touch control region 12 d to enter the pad region 14 d, and becomemutually connected to connect the electrode Sd1[iu, j] and Sd2[iu, j] asthe electrode Sd[iu, j].

Assuming that positions of y coordinates of a pair of electrodesSd1[iu2, j] and Sd2[iu2, j] (not shown) are lower than those of theelectrodes Sd1[iu, j] and Sd2[iu, j] (i.e., iu<iu2<(Na−1)), the routingLd1[iu2, j] of the electrode Sd1[iu2, j] upwardly extends between theroutings Ld1[iu, j] and Ld[Na−1, j], and the routing Ld2[iu2, j] of theelectrode Sd2[iu2, j] upwardly extends between the routings Ld[Na−1, j]and Ld2[iu, j]. Under the above routing layout, the routings are keptfree from intersecting one another in cross-bridge connections, and canthus be disposed at a single conductive layer with the electrodes.

As shown in FIG. 10, the electrode Sd[Na, j] is connected to a routingLd[Na, j]. The two electrodes Sd1[id, j] and Sd2[id, j], regarded as twoleft and right sub-electrodes of the electrode Sd[id, j], are spaced byan insulation gap extending along the y-axis, and are respectivelyconnected to two routings Ld1[id, j] and Ld2[id, j]. The insulation gapsof the electrodes Sd[Na+1, j] to Sd[Nr−1, j] are connected to form adownwardly extending channel (towards the negative y direction). Therouting Ld[Na, j] downwardly extends along the channel to exit the lowerside of the touch control region 12 d, and winds to the pad region 14 dalong the periphery of the touch control region 12 d (FIG. 9). Theroutings Ld1[id, j[and Ld2[id, j] downwardly extend in parallel atopposite sides of the routing Ld[Na, j], exit the lower side of thetouch control region 12 d, and wind upwards along the periphery of thetouch control region 12 to reach the pad region 14 d to become mutuallyconnected, so as to connect the electrodes Sd1[id, j] and Sd2[id, j] toform the electrode Sd[id, j].

Assuming that positions of y coordinates of a pair of electrodesSd1[id2, j] and Sd2[id2, j] (not shown) are lower than those of theelectrodes Sd1[id, j] and Sd2[id, j], i.e., Na<id2<id, the routingLd1[id2, j] of the electrode Sd1[id2, j] downwardly extends between theroutings Ld1[id, j] and Ld[Na, j], and the routing Ld2[id2, j] of theelectrode Sd2[id2, j] downwardly extends between the routings Ld[Na, j]and Ld2[id, j]. Thus, the routings La[Na, j], Ld1[Na+1, j] to Ld1[Nr−1,j] and Ld2[Na+1, j] to Ld2[Nr−1, j] are kept free from intersecting oneanother in cross-bridge connections, and can thus be disposed at asingle conductive layer with the electrodes.

Similar to the routing layout of the electrodes Sd[1, j] to Sd[Na−1, j]and Sd[Na, j] to Sd[Nr−1, j], the electrode Dd[Na−1, j] is connected toa routing Wd[Na−1, j] (FIG. 10). The two electrodes Dd1[iu, j] andDd2[iu, j] are spaced by an insulation gap extending along the y-axis,and are respectively connected to two routings Wd1[iu, j] and Wd2[iu,j]. The routing Wd[Na−1, j] upwardly extends to pass through the upperside of the touch control region 12 d and enters the pad region 14 d.The routings Wd1[iu, j] and Wd2[iu, j] upwardly extend in parallel attwo opposite sides of the routing Wd[Na−1, j], pass through the upperside of the touch control region 12 d to enter the pad region 14 d, andconnect the electrodes Dd1[iu, j] and Dd2[iu, j] as the electrode Dd[iu,j].

The electrode Dd[Na, j] is connected to a routing Wd[Na, j]. The twoelectrodes Dd1[id, j] and Dd2[id, j] are spaced by an insulation gapextending along the y-axis, and are respectively connected to tworoutings Wd1[id, j] and Wd2[id, j]. The insulation gaps of theelectrodes Dd[Na+1, j]to Dd[Nr, j] are connected to form a downwardlyextending channel (towards the negative y direction). The routing Ld[Na,j] downwardly extends along the channel to exit the lower side of thetouch control region 12 d, and winds back to the pad region 14 d alongthe periphery of the touch control region 12 d. The routings Wd1[id, j]and Wd2[id, j] downwardly extend in parallel at two opposite sides ofthe routing Wd[Na, j], exit the touch control region 12 d via the lowerside of the touch control region 12 d, wind back to the pad region 14 dalong the periphery of the touch control region 14 d and become mutuallyconnected, so as to connect the electrodes Dd1[id, j] and Dd2[id, j] toform the electrode Dd[id, j].

FIG. 11 shows an electrode shape exemplified by the neighboringelectrodes Sd[i, j], Dd[i, j] and Dd[i+1, j] according to an embodiment.The electrode Sd2[i, j] and the electrode Dd1[i, j] are two tessellationelectrodes, and the electrode Sd2[i, j] and the electrode Dd1[i+1, j]are also two tessellation electrodes. In one embodiment, borders of twotessellation electrodes possess jigsaw sections to allow the twotessellation electrodes to mutually intervene with the presence of aninsulation gap in between. For example, the border of the electrodeSd2[i, j] includes a jigsaw section sct3, which extends from one pointpnt3 a to another point pnt3 b at the border. To correspond to thejigsaw shape of the jigsaw section sct3, the border of the electrodeDd1[i+1, j] includes a corresponding jigsaw section sct4 extendingbetween two points pnt4 a and ptn4 b at the border, and intervenes withthe jigsaw section sct3 with a gap in between. Contributed by the jigsawshape of the jigsaw section sct3, the length of the jigsaw section sct3is greater than a linear distance between the points pnt3 a and pnt3 b,and the jigsaw section sct4 greatly extends and crosses a connectionline between the points pnt3 a and pnt3 b. Similarly, the length of thejigsaw section sct4 is greater than a linear distance between the pointspnt4 a and pnt4 b, and the jigsaw section sct3 also crosses between thepoints pnt4 a and pnt4 b. Since the jigsaw sections increase thecorresponding border length between the electrodes Sd2[i, j] andDd1[i+1, j], mutual coupling between the electrodes Sd2[i, j] andDd1[41, j] is significantly increased to more acutely sense the mutualcapacitance change induced by a touch control.

Similarly, the electrodes Sd2[i, j] and Dd1[i, j] are also mutuallyintervened by jigsaw sections with an insulation gap in between. Forexample, to form the jigsaw section of the electrode Sd2[i, j], a borderof the electrode Sd2[i, j] may include multiple branches, e.g., a branchbrn1, with a dent between the branches, e.g., a dent blnk1. At theborder of the electrode Sd2[i, j], the branch brn1 protrudes between twopoints pnt1 a and pnt1 b, in a way that a perimeter of the branch brn1between the points pnt1 a and pnt1 b (i.e., the section sct1) is greaterthan a linear distance between the points pnt1 a and pnt1 b. The dentblnk1 is formed between two points pnt2 a and pnt2 b, in a way that theperimeter of the dent blnk1 between the points pnt2 a and pnt2 b (i.e.,the section sct2) is greater than a linear distance between the pointspnt2 a and pnt2 b. Thus, the branch brn1 of the electrode Sd2 extendsinto the dent of the electrode Dd1[i, j], and the dent blnk1 of theelectrode Sd2[i, j] accommodates the protruding branch of the electrodeDd1[i, j].

FIGS. 12 and 13 show a touch panel 10 e according to an embodiment ofthe present invention. The touch panel 10 e implements the routinglayout in the touch panel 10 c in FIG. 7 utilizing the electrodes inFIG. 11. The touch panel 10 e includes a touch control region 12 e and apad region 14 e. The touch control region 12 e includes electrodes De[1,j] to De[Nr, j] and electrodes Se[1, j] to Se[Nr−1, j], which are alldisposed at a single conductive layer, similar to the electrodes Dc[1,j] to Dc[Nr, j] and the electrodes Sc[1, j] and Sc[Nr−1, j] in FIG. 7.In the touch panel 10 e, each electrode Se[i, j] of the electrodes Se[1,j] to Se[Nr−2, j] includes two electrodes Se1[i, j] and Se2[i, j], andeach electrode De[i, j] of the electrodes De[1, j] to De[Nr−1, j]comprises two electrodes De1[i, j] and De2[i, j].

As shown in FIG. 13, the electrode Se[Nr−1, j] is connected to a routingLe[Nr−1, j]. Two electrodes Se1[i, j] and Se2[i, j], regarded as twoleft and right sub-electrodes of the electrode Se[i, j], are spaced byan insulation gap extending along the y-axis, and are respectivelyconnected to two routings Le1[i, j] and Le2[i, j]. The insulation gapsof the electrodes Se[1, j] to Se[Nr−2, j] are connected to form anupwardly extending insulation channel. The routing Le[Nr−1, j] upwardlyextends along the channel and enters the pad region 14 e via the upperside of the touch control region 12 e. The routings Le1[i, j] and Le2[i,j] upwardly extend in parallel at two left and right sides of therouting Le[Nr−1, j], enter the pad region 14 e via the upper side of thetouch control region 12 e as the routing Le[Nr−1, j] and become mutuallyconnected, so as to connect the electrodes Se1[i, j] and Se2[i, j] toform the electrode Se[i, j].

Assuming that positions of y coordinates of a pair of electrodes Se1[i2,j] and Se2[i2, j] (not shown) are lower than those of the electrodesSe1[i, j] and Se2[i, j], i.e., i<i2<(Nr−1) a routing Le1[i2, j] of theelectrode Se1[i2, j] upwardly extends between the routings Le1[i, j] andLe[Nr−1, j], and a routing Le2[i2, j] of the electrode Se2[i2, j]upwardly extends between the routings Le1[Nr−1, j] and Le2[i, j]. Underthe above routing layout, the routings are kept free from intersectingone another in cross-bridge connections, and can thus be disposed at asingle conductive layer with the electrodes.

Similarly, the electrode De[Nr, j] is connected to a routing We[Nr, j].Two electrodes De1[i, j] and De2[i, j], regarded as two left and rightsub-electrodes of the electrode De[i, j], are spaced by an insulationgap extending along the y-axis, and are respectively connected to tworoutings We1[i, j] and We2[i, j]. The insulation gaps of the electrodesDe[1, j] to De[Nr−1, j] are connected to form an upwardly extendingchannel. The routing We[Nr, j] upwardly extends along the channel, andenters the pad region 14 e via the upper side of the touch controlregion 12 e. The routings We1[i, j] and We2[i, j] upwardly extend inparallel at two left and right sides of the routing We[Nr, j], passthrough the upper side of the touch control region 12 e as the routingWe[Nr, j] to enter the pad region 14 e, and become mutually connected toconnect the electrodes De1[i, j] and De2[i, j] to one same electrodeDe[i, j].

The electrodes Sd[Na−1, j], Sd[Na, j], Dd[Na−1, j] and Dd[Na, j] inFIGS. 9 to 11, and/or the electrodes Se[Nr−1, j] and De[Nr, j] in FIGS.11 and 12 may also be defined with the loop-like insulation gap 16 asshown in FIG. 3 therein, and the width of the insulation gap 16 withrespect to the x-axis may be similar to that of the insulation gapbetween the two sub-electrodes.

FIG. 14 shows electrodes Sf[i, j] and Df[i, j] according to anembodiment of the present invention. The electrodes Sf[i, j] and Df[i,j] may replace the electrodes Sd[i, j] and Dd[i, j] of the touch panel10 d (FIGS. 9 to 11), or the electrodes Se[i, j] and De[i, j] of thetouch panel 10 e (FIGS. 12 and 13). The electrode Sf[i, j] includes twoelectrodes Sf1[i, j] and Sf2[i, j], and are spaced by an insulation gapalong the x-axis that form a y-axis channel for routings. The electrodeDf[i, j] includes two electrodes Df1[i, j] and Df2[i, j], and are spacedby an insulation gap that forms a y-axis channel for routings. A jigsawsection is formed between points pnt5 a and pnt5 b of the electrodeSf2[i, j], and has a length greater than a linear distance between thepoints pnt5 a and pnt5 b. Correspondingly, the electrode Df1[i, j] has ajigsaw section formed between points pnt6 a and pnt6 b, and the jigsawsection has a length greater than a linear distance between the pointspnt6 a and pnt6 b. The jigsaw section between the points pnt6 a and pnt6b intervenes with the jigsaw section between the points pnt5 a and pnt5b with a gap in between. The jigsaw section between the points pnt5 aand pnt5 b crosses between the points pnt6 a and pnt6 b, and the jigsawsection between the points pnt6 a and pnt6 b crosses between the pointspnt5 a and pnt5 b.

FIG. 15 shows electrodes Sg[i, j] and Dg[i, j] according to anembodiment of the present invention. The electrodes Sg[i, j] and Dg[i,j] may replace the electrodes Sd[i, j] and Dd[i, j] of the touch panel10 d (FIGS. 9 to 11), or the electrodes Se[i, j] and De[i, j] of thetouch panel 10 e (FIGS. 12 and 13). The electrode Sg[i, j] includes twoelectrodes Sg1[i, j] and Sg2[i, j] spaced by an insulation gap forforming a y-axis channel. A jigsaw section is formed between points pnt7a and pnt7 b of the electrode Sg2[i, j], and has a length greater than alinear distance between the points pnt7 a and pnt7 b. Correspondingly, ajigsaw section is formed between points pnt8 a and pnt8 b of theelectrode Dg1[i, j], and has a length greater than a linear distancebetween the points pnt8 a and pnt8 b. The jigsaw section between thepoints pnt7 a and pnt7 b crosses between the points pnt8 a and pnt8 b,and the jigsaw section between the points pnt8 a and pnt8 b crossesbetween the points pnt7 a and pnt7 b.

FIG. 16 shows electrodes Sh[i, j] and Dh[i, j] according to anembodiment of the present invention. The electrodes Sh[i, j] and Dh[i,j] may replace the electrodes Sd[i, j] and Dd[i, j] of the touch panel10 d (FIGS. 9 to 11), or the electrodes Se[i, j] and De[i, j] of thetouch panel 10 e (FIGS. 12 and 13). The electrode Sh[i, j] includes twoelectrodes Sh1[i, j] and Sh2[i, j] spaced by an insulation gap to form apath along y-axis for routings. The electrode Dh[i, j] includes twoelectrodes Dh1[i, j] and Dh2[i, j]] spaced by an insulation gap to forma path along y-axis for routings. A jigsaw section is formed betweenpoints pnt9 a and pnt9 b of the electrode Sh2[i, j], and has a lengthsubstantially greater than a linear distance between the points pnt9 aand pnt9 b. Correspondingly, a jigsaw section is formed between pointspnt10 a and pnt10 b of the electrode Dh1[i, j], and has a lengthsubstantially greater than a linear distance between the points pnt10 aand pnt10 b.

FIGS. 17 and 18 show a touch panel 10 i according to an embodiment ofthe present invention. The touch panel 10 i is capable of implementingthe electrode arrangement and routings in FIG. 1. The touch panel 10 iincludes a touch control region 12 i and a pad region 14 i. The touchcontrol region 12 i includes electrodes Di[1, j] to Di[Nr, j] andelectrodes Si[1, j] to Si[Nr−1, j], which are all disposed at a singleconductive layer and respectively serve as the electrodes D[1, j] toD[Nr, j] and the electrodes S[1, j] and S[Nr−1, j] in FIG. 1.

Similar to the embodiment in FIG. 15, a border of the electrode Si[i, j](where i may be iu or id) has two jigsaw sections that intervene with apart of borders of two neighboring electrodes Di[i, j] and Di[i+1, j]with an insulation gap in between. At one other side to the two jigsawsections, the electrode Si[i, j] is spaced from two neighboringelectrodes Di[i, j−1] and Di[i+1, j−1] by an insulation gap along thex-axis to form a routable y-axis channel. Similarly, a border of theelectrode Di[i, j] also has two jigsaw sections that intervene with apart of borders of the electrodes Si[i−1, j] and Si[i, j] with aninsulation gap in between. At one other side to the two jigsaw sections,the electrode Di[i, j] is spaced from two neighboring electrodes Si[i−1,j+1] and Si[i, j+1] by an insulation gap along the x-axis to form aroutable y-axis channel.

As shown in FIG. 18, the electrode Si[1, j] and the electrode Si[Na−1,j] are respectively connected to routings Li[1, j] and Li[Na−1, j]. Anarbitrary electrode Si[iu, j] of the electrodes Si[1, j] to Si[Na−1, j]is connected to the routing Li[iu, j] located between the routings Li[1,j] and Li[Na−1, j]. The routings Li[1, j], Li[iu, j] to Li[Na−1, j]upwardly extend to pass through the upper side of the touch controlregion 12 i and enter the pad region 14 i. Among the electrodes Si[1, j]to Si[Na−1, j], when one electrode Si[iu2, j] is arranged between theelectrodes Si[iu, j] and Si[Na−1, j] (i.e., iu<iu2<(Na−1)), a routingLi[iu2, j] connected to an electrode Si[iu2, j] is located between theroutings L[iu, j] and L[Na−1, j]. Thus, the routings Li[1, j] toLi[Na−1, j] do not cross one another such that the electrodes may beformed at a single conductive layer.

The electrode Si[Na, j] and the electrode Si[Nr−1, j] are respectivelyconnected to routings Li[Na, j] and Li[Nr−1, j]. An arbitrary electrodeSi[id, j] among of the electrodes Si[Na, j] to Si[Nr−1, j] is connectedto a routing Li[id, j] located between the routings Li[Na, j] andLi[Nr−1, j]. The routings Li[Na, j], Li[id, j] to Li[Nr−1, j] downwardlyextend to pass through the lower side of the touch control region 12 i,and wind along the periphery of the touch control region 12 i to enterthe pad region 14 i. Among the electrodes Si[Na, j] to Si[Nr−1, j], whenone electrode Si[id2, j] is arranged between the electrodes Si[id, j]and Si[Nr−1, j] (i.e., id<id2<(Nr−1)), the routing Li[id2, j] connectedto the electrode Si[id2, j] is located between the routings Li[id, j]and Li[Nr−1, j] to prevent the routings from crossing one another.

Similarly, the electrode Di[1, j] and the electrode Di[Na−1, j] arerespectively connected to routings Wi[1, j] and Wi[Na−1, j]. Anarbitrary electrode Di[iu, j] of the electrodes Di[1, j] to Di[Na−1, j]is connected to a routing Wi[iu, j]. The routing Wi[iu, j] is locatedbetween the routings Wi[1, j] and Wi[Na−1, j], and upwardly extends withthe routings Wi[1, j] and Wi[Na−1, j] to pass through the upper side ofthe touch control region 12 i and enter the pad region 14 i. Theelectrode Di[Na, j] and the electrode Di[Nr, j] are respectivelyconnected to routings Wi[Na, j] and Wi[Nr, j]. An arbitrary electrodeDi[id, j] of the electrodes Di[Na, j] to Di[Nr, j] is connected to arouting Wi[id, j]. The routing Wi[id, j] is located between the routingsWi[Na, j] and Wi[Nr, j], and downwardly extends with the routings Wi[Na,j] and Wi[Nr, j] to pass through the lower side of the touch controlregion 12 i, and winds along the periphery of the touch control region12 i to enter the pad region 14 i.

In the embodiment in FIGS. 17 and 18, the shape of the electrode Si[i,j] may be the design of the electrode Sd2[i, j] (FIG. 11), Sf2[i, j](FIG. 14), Sg2[i, j] (FIG. 15) or Sh2[i, j] (FIG. 16). Correspondingly,the shape of the electrode Di[i, j] may be the design of the electrodeDd1[i, j] (FIG. 11), Df2[i, j] (FIG. 14), Dg2[i, j] (FIG. 15) or Dh2[i,j] (FIG. 16).

In the touch panel 10 i in FIGS. 17 and 18, the routings of theelectrodes are extended via the upper and lower sides of the touchcontrol region 12 i. Alternatively, the routings of the electrodes mayall be extended into the pad region 14 i via the upper side of the touchcontrol region 12 i.

FIG. 19 shows a touch panel 10 j according to an embodiment of thepresent invention. The touch panel 10 j includes a touch control region12 j and a pad region 14 j. The touch control region 12 j includeselectrodes Dj[i, j] to Dj[Nr, j] and electrodes Sj[1, j] to Sj[Nr−1, j],which are all formed at a single conductive layer and respectively serveas the electrodes D[1, j] to D[Nr, j] and the electrodes S[1, j] toS[Nr, j] in FIG. 1.

The electrodes Dj[1, j−1] and Dj[Nr, j−1] are respectively connected toroutings Wj[1, j−1] and Wj[Nr, j−1]. An arbitrary electrode Dj[i, j−1]of the electrodes Dj[1, j−1] and Dj[Nr, j−1] is connected to a routingWj[i, j−1]. Similarly, the electrodes Sj[1, j] and Sj[Nr−1, j] arerespectively connected to routings Lj[1, j] and Lj[Nr−1, j]. Anarbitrary electrode of the electrodes Sj[1, j] to Sj[Nr−1, j] isconnected to a routing Lj[i, j].

In the touch control region 12 j, between the electrodes Dj[1, j−1] toDj[Nr, j−1] and the electrodes Sj[1, j] to Sj[Nr−1, j], a y-axis channelis formed. In the y-axis channel, the routing Wj[i, j−1] is locatedbetween the routings Wj[1, j−1] and Wj[Nr, j−1], and extends upwardlywith the routings Wj[1, j−1] and Wj[Nr, j−1] to reach the pad region 14j. The routing Lj[i, j] is located between the routings Lj[1, j] andLj[Nr−1, j], and upwardly extends with the routings Lj[1, j] andLj[Nr−1, j] to reach the pad region 14 j. The routing Wj[1, j−1] toWj[Nr, j−1] and the routings Lj[Nr−1, j] to Lj[1, j] are kept free fromcrossing one another, and can thus be formed at a single layer with theelectrodes.

FIG. 20 shows a touch panel 10 k according to an embodiment of thepresent invention. The touch panel 10 k includes a touch control region12 k and a pad region 14 k. The touch control region 12 k includes anelectrode Sk[j] and electrodes Dk[1, j] to Dk[Nr, j], which are disposedat a single conductive layer. The electrodes Dk[1, j] to Dk[Nr, j] mayrespectively implement the electrodes D[1, j] to D[Nr, j] (FIG. 1), andthe electrode Sk[j] is equivalent to coupling the electrodes S[1, j] toS[Nr−1, j] together (FIG. 1). A border of the electrode Sk[j] hasmultiple jigsaw sections, which respectively intervene with theelectrodes Dk[1, j] to Dk[Nr, j] with an insulation gap in between. Forexample, a jigsaw section is formed between points pnt11 a and pnt11 bof the electrode Sk[j]. Correspondingly, a jigsaw section is formedbetween points pnt12 a and pnt12 b of the electrode Dk[1, j]. Theelectrodes Dk[1, j] to Dk[Nr, k] and the electrode Sk[j+1] are alsospaced by an insulation gap for forming a routable channel Hk[j]extending along the y-axis.

In the channel Hk[j], the electrode Sk[j] is connected to a routingLk[j], and the electrodes Dk[1, j], Dk[Na−1, j], Dk[Na, j] and Kd[Nr, j]are respectively connected to routings Wk[1, j], Wk[Na−1, j], Wk[Na, j]and Wk[Nr, j]. An arbitrary electrode Dk[iu, j] of the electrodes Dk[1,j] to Dk[Na−1, j] is connected to a routing Wk[iu, j]. The routingWk[iu, j] is located between the routings Wk[1, j] and Wk[Na−1, j], andupwardly extends with the routings Wk[1, j] and Wk[Na−1, j] (and therouting Lk[j]) to pass through the upper border of the touch controlregion 12 k to enter the pad region 14 k. An arbitrary electrode Dk[id,j] of the electrodes Dk[Na, j] to Kd[Nr, j] is connected to a routingWk[id, j]. The routing Wk[id, j] is located between the routings Wk[Na,j] and Wk[Nr, j], downwardly extends with the routings Wk[Na, j] andWk[Nr, j] to pass through the lower border of the touch control region12 k, and winds along the periphery of the touch control region 12 k toenter the pad region 14 k. Alternatively, the routing Lk[j] and theroutings Wk[1, j] to Wk[Nr, j] all upwardly extend to pass through theupper side of the touch control region 12 k to enter the pad region 14k.

FIG. 21 shows a touch panel 10L according to an embodiment of thepresent invention. The touch panel 10L includes a touch control region12L and a pad region 14L. The touch control region 12L includeselectrodes SL[j] and electrodes DL[1, j] to DL[Nr, j], which aredisposed at a single conductive layer. The electrodes DL[1, j] to DL[Nr,j] may respectively implement the electrodes D[1, j] to D[Nr, j] (FIG.1), and the electrode SL[j] is equivalent to coupling the electrodesS[1, j] to S[Nr−1] together. A border of the electrode SL[j] hasmultiple jigsaw sections, which respectively intervene with theelectrodes DL[1, j] to DL[Nr, j] with an insulation gap in between. Theelectrodes DL[1, j] to DL[Nr, k] and the electrode SL[j+1] are alsospaced by an insulation gap for forming a routable channel HL[j]extending along the y-axis. An opening opn[1] is formed at the upperside of the electrode SL[j] to allow the a routing WL[1, j] of theelectrode DL[1, j] to upwardly extend. Multiple openings are also formedat the right side of the electrode SL[j], e.g., openings opn[2] andopn[3], to allow routings WL[2, j] and WL[3, j] of the electrodes DL[2,j] and DL[3, j] to extend to the right to the channel HL[j], and soforth. Alternatively, a particular part of the electrode SL[j] may alsoconnect at the right side and form an opening opn[i] at the left side toallow a particular electrode(s) DL[i, j] to extend to the left to thechannel HL[j−1].

In the touch panel 10L, the routings of the electrodes DL[1, j] toDL[Nr, j] may be divided into two groups that respectively pass throughthe upper and lower sides of the touch control region 12L, or all passthrough the upper side of the touch control region 12L to extend to thepad region 14L.

FIG. 22 shows a schematic diagram of pads and routings according to anembodiment of the present invention. The pads and routings of theembodiment are applied to a touch panel of the present invention. InFIG. 22, a pad region 14 m commonly refers to the pad region 14 a (FIG.2), 14 b (FIG. 4), 14 c (FIG. 7), 14 d (FIG. 9), 14 e (FIG. 12), 14 i(FIG. 17), 14 j (FIG. 19), 14 k (FIG. 20) and 14L (FIG. 21), andincludes multiple pads, e.g., pads P[1], P[2] to P[q] and P[q1] toP[q3]. In the embodiment in FIG. 22, the pads are arranged in a rowalong the x-axis. Each of the pads P[q] connects at least one routingLm[q] to a corresponding pad on a circuit board, e.g., a flexiblecircuit board (not shown), such that the routing Lm[q] connects to acorresponding sensor or driver via the circuit board. The routing Lm[1]commonly refers to a routing extended from an arbitrary electrode of thetouch control region, e.g., the routings La1[iu, j], La2[iu, j], La1[id,j], La2[id, j], La[Na−1, j] and La[Na, j] (FIG. 3), the routings Lb[j],Lb1[j] and Lb2[j] (FIG. 5), the routings Wb[Nr, j], Wb1[i, j] and Wb2[i,j] (FIG. 6), the routings Lc[Nr−1], Lc1[i, j] and Lc2[i, j] (FIG. 8),the routings Ld[Na−1, j], Ld[Na, j], Ld1[iu, j], Ld2[iu, j], Ld1[id, j],Ld2[id, j], Wd[Na−1, j], Wd[Na, j], Wd1[iu, j], Wd2[iu, j], Wd1[id, j]and Wd2[id, j] (FIG. 10), the routings Le[Nr−1, j], Le1[i, j], Le2[i,j], We[Nr, j], Wet [i, j] and We2[i, j] (FIG. 13), the routings Li[iu,j], Li[id, j], Wi[iu, j] and Wi[id, j] (FIG. 18), the routings Lj[i, j]and Wj[i, j−1] (FIG. 19), the routings Lk[j], Wk[iu, j] and Wk[id, j](FIG. 20), and the routings WI[1, j] to WL[3, j] (FIG. 21).

In FIG. 22, the routings of the same property may be connected to thesame pad, i.e., the same pad may connect to multiple routings to reducethe number of pads. The routings of the same property refer to routingsthat need to be connected to the same sensor, the same driver or havingthe same voltage. For example, two routings extended from twosub-electrodes of a same electrode are routings of the same property.Further, as described with reference to FIG. 1, in various embodimentsof the driving-sensing arrangement, different electrodes S[i1, j1] andS[i2, j2] may be connected to the same sensor, and therefore theroutings of the electrodes S[i1, j1] and S[i2, j2] are of the sameproperty. Similarly, different electrodes D[i1, j1] and D[i2, j2] mayalso be connected to the same driver, and so the routings of the D[i1,j1] and D[i2, j2] are of the same property.

As each pad occupies a substantial area and an appropriate distanceneeds to be kept between the pads. Thus, by connecting the routings ofthe same property to the same pad, the number of pads required can besignificantly lowered to reduce the area occupied by the pads. As shownin FIG. 22, the routings Lm[q1] and Lm[q4] are of the same property, andcan thus be connected to the same pad P[q1]. Similarly, the routingsLm[q2] and Lm[q3] are of the same property, and can thus be connected tothe pad P[q2] via two ends of the pad P[q2]. To keep the routing Lm[q4]and the connection between the pad P[q1] to the routing Lm[q1] as wellas the routing Lm[q3] and the connection between the pad P[q2] and therouting Lm[q2] free from crossing one another, the routings Lm[q2] andLm[q3] are maintained between the routings Lm[q1] and Lm[q4], and thepad P[q2] to be connected to the routings Lm[q2] and Lm[q3] is alsolocated between the routings Lm[q4] and Lm[q1]. Since the routingLm[q4], the connection between the pad P[q1] and the routing Lm[q1] aswell as the routing Lm[q3] and the connection between pad P[q2] and therouting Lm[q2] do not cross one another, the pads, the routings and theelectrodes may be formed at a single conductive layer.

For example, the routing Lm[q5] connected to the pad P[q3] may be therouting La[Na−1, j] connected to the electrode Sa[Na−1, j] in FIG. 3.The routings Lm[q2] and Lm[q3] at the two sides of the routing Lm[q5]may be the routings La1[iu2, j] and La2[iu2, j] respectively connectedto the electrodes Sa1[iu2, j] and Sa2[iu2, j]. The electrodes Sa1[iu2,j] and Sa2[iu2, j] are respectively located at two opposite sides of therouting Lm[q5], such that the connections of the electrode Sa2[iu2, j],the routing La2[iu2, j] (the routing Lm[q3], the pad P[q2], the routingLa1[iu2, j] (the routing Lm[q2]) to the electrode Sa1[iu2, j] areencircled around the electrode Sa[Na−1, j], the routing La[Na−1, j] (therouting Lm[q5]) and the pad P[q3]. The routings Lm[q1] and Lm[q4] aroundthe routings Lm[q2] and Lm[q3] may be the routings La1[iu, j] andLa2[iu, j] in FIG. 3, which are respectively connected to the electrodesSa1[iu, j] and Sa2[iu, j]. The connections of the electrodes Sa2[iu, j],the routing La2[iu, j] (the routing Lm[q4]), the pad P[q1], the routingLa1[iu, j] (the pad Lm[q1]) to the electrode Sa1[iu, j] are encircledaround the electrode Sa2[iu2, j], the routing La2[iu2, j] (the routingLm[q3]), the pad P[q2], the routing La1[iu2, j] (the routing Lm[q2]) andthe electrode Sa1[iu2, j]. The pad P[q2] is arranged between the padsP[q1] and P[q3], and the pads P[q1], P[q2] and P[q3] may also be threenon-neighboring pads.

An appropriate driving-sensing arrangement allows different routings toshare a same pad. For example, in the touch panel 10 k in FIG. 20, theelectrode Dk[id, j] may be connected to the driverDU[mod(j,2)*i+mod(j−1,2)*(Nr−id+1)]. That is, the electrodes Dk[id, j]and Dk[Nr−id+1, j+1] are connected to the same driver. Thus, the routingWk[1, j] and the routing Wk[Nr, j+1] may be connected to a same pad,e.g., the pad P[q1], the routing Wk[2, j] between the routings Wk[1, j]and Wk[Nr, j+1] and the routing Wk[Nr−1, j+1] may be connected to a samepad, e.g., the pad P[q2], and the routing Wk[3, j] between the routingsWk[2, j] and Wk[Nr−1, j+1] and the routing Wk[Nr−2, j+1] may beconnected to a same pad, e.g., the pad P[q3], and so forth.

FIG. 23 shows a schematic diagram of pads and routings according toanother embodiment of the present invention. As the pad region 14 mshown in FIG. 22, a pad region 14 n in FIG. 23 commonly refers to thepad region 14 a (FIG. 2), 14 b (FIG. 4), 14 c (FIG. 7), 14 d (FIG. 9),14 e (FIG. 12), 14 i (FIG. 17), 14 j (FIG. 19), 14 k (FIG. 20) and 14L(FIG. 21), and includes multiple staggered pads, e.g., pads P[1, 1],P[1, 2] to P[1, q] and P[2, 1], P[2, 2] to P[2, q]. In FIG. 23, the padsare arranged in two rows. The pads P[1, 1], P[1, 2] to P[1, q] arearranged in one row along the x-axis, and the pads P[2, 1], P[2, 2] toP[2, q] are arranged in another row along the x-axis. The x coordinateof the pad P[2, 1] is between those of the pads P[1, 2] and P[1, 2], thex coordinate of the pad P[1, 2] is between those of the pads P[2, 1] andP[2, 2], and so forth. Each of the pads P[1, q] and P[2, q] arerespectively connected to at least one routing. For example, the padsP[1, 1], P[1, 2], P[2, 1] and P[2, 2] are respectively connected toroutings Ln[1] to Ln[4].

In FIG. 23, different routings of the same property may encircle pads ofa same row and/or pads of different rows to connect to a same pad. Theroutings Ln[q1] and Ln[q4] of the same property may be respectivelyconnected to two ends of the pad P[1, q1], and the other two routingsLn[q2] and Ln[q3] of the same property may be jointly connected to thepad P[2, q2] at another row. As the routings Ln[q2] and Ln[q3] staybetween the routings Ln[q1] and Ln[q4], and the pad P[2, q2] to beconnected to the routings Ln[q2] and Ln[q3] is also located between therouting Ln[q4] and the pad P[1, q1], the connections of the routingLm[q4], the pad P[1, q1] to the routing Lm[q1]and the connections of therouting Lm[q3], the pad P[2, q2] to the routing Lm[q2] are kept freefrom intervening one another. That is, the pads in the staggeredarrangement is capable of reducing the x-axis width of the pad region 14n, and different routings of the same property (routings connected todifferent electrodes) may also be connected to the same pad.

FIG. 24 shows an electrode arrangement according to an embodiment of thepresent invention. Two electrodes Z1 and Z2 are two neighboringelectrodes in any of the foregoing embodiments, and are spaced by aninsulation gap 17 a having a distance d1. For example, the electrode Z1may connect to a driver, and the electrode Z2 may connect to a sensor.In the gap 17 a, a dummy electrode may be additionally disposed, e.g.,dummy electrodes zd[1], zd[2] to zd[r]. The dummy electrodes zd[1] tozd[r] are insulated from one another, and are also insulated from theelectrodes Z1 and Z2. For example, the dummy electrode zd[1] is spacedfrom the electrode Z1 by a gap 17 b having a distance d2, and is spacedfrom the electrode Z2 by a gap 17 c having a distance d3. Thus, theelectrode Zd[r] is kept floating, and is unconnected to any circuit,including the sensors and drivers. With the stuffing provided by thedummy electrode zd[r], the insulation gap 17 a between the electrodes Z1and Z2 originally having a greater width is reduced to two gaps 17 b and17 c having smaller distances. In other words, the dummy electrode zd[r]partially stuffs the gap 17 a between the electrodes Z1 and Z2, in a waythat the gap 17 a appears less obvious to thus not only impose reducedeffects upon image quality when the touch panel is integrated to adisplay panel but also benefits processing and manufacturing of theelectrodes. Further, electric field power lines of the electrodes Z1 andZ2 may be first coupled to the dummy electrode zd[r] via the electrodeZ1 and then coupled to the electrode Z2 via the dummy electrode zd[r].Therefore, the dummy electrode zd[r] converges the power lines betweenthe electrodes Z1 and Z2 to reduce the power line loss, therebyfacilitating the sensing of mutual capacitance changes.

In conclusion, for a multi-touch touch panel cooperating drivers andsensors, a total solution is provided in various aspects from anelectrode arrangement, a routing layout to a pad arrangement. As such,electrodes, routings and pads are allowed to form at a single conductivelayer to further reduce the size, area and thickness of the touch panelwhile also lowering costs of the touch panel. Further, the regularity inthe routing layout of the embodiment presents a spatial periodicity,thus allowing ambient electrical environment of the electrodes toapproach consistency for enhancing touch sensing performance.

While the invention has been described by way of example and in terms ofthe preferred embodiments, it is to be understood that the invention isnot limited thereto. On the contrary, it is intended to cover variousmodifications and similar arrangements and procedures, and the scope ofthe appended claims therefore should be accorded the broadestinterpretation so as to encompass all such modifications and similararrangements and procedures.

What is claimed is:
 1. A touch panel, comprising: a first electrode,disposed on a conductive layer; a first routing, arranged on theconductive layer and connected to the first electrode; a secondelectrode, disposed on the conductive layer, comprising two secondsub-electrodes respectively disposed at two sides of the first routingand insulated from the first routing; two second routings, arranged onthe conductive layer, respectively connected to the two secondsub-electrodes to mutually connect the two second sub-electrodes; and athird electrode, disposed on the conductive layer and insulated from thefirst electrode and the second electrode; wherein, two among the firstelectrode, the second electrode, and the third electrode arerespectively connected to a driver and a sensor.
 2. The touch panelaccording to claim 1, wherein the two second routings respectivelyextend along two sides of the first routing.
 3. The touch panelaccording to claim 1, further comprising: a first pad, disposed on theconductive layer; wherein two ends of the first routing are respectivelyconnected to the first pad and the first electrode; and a second pad,disposed on the conductive layer; wherein the two second routingsrespectively extend along two sides of the first routing to connect thesecond pad to the two second sub-electrodes.
 4. The touch panelaccording to claim 1, wherein the first electrode comprises two firstsub-electrodes, and the first routing is connected to one of the twofirst sub-electrodes.
 5. The touch panel according to claim 1, whereinthe two second sub-electrodes are spaced by a first gap, and the firstrouting extends along the first gap.
 6. The touch panel according toclaim 5, further comprising a fourth electrode disposed on theconductive layer; wherein, the second electrode is located between thefirst electrode and the fourth electrode, and the fourth electrodecomprises two fourth sub-electrodes; the two fourth sub-electrodes arespaced by a second gap, and the first routing and the two secondroutings extend along the second gap.
 7. The touch panel according toclaim 1, comprising a touch control region and a pad region; wherein thefirst electrode and the second electrode are located in the touchcontrol region; the first routing passes through a first side of thetouch control region to extend to the pad region, and the two secondroutings also pass through the first side to extend to the pad region.8. The touch panel according to claim 1, further comprising: a fourthelectrode, disposed on the conductive layer; and a fourth routing,arranged on the conductive layer and connected to fourth electrode;wherein, the first electrode is located between the second electrode andthe fourth electrode; the touch panel comprises a touch control regionand a pad region, the first electrode; the second electrode and thefourth electrode are located in the touch control region; the firstrouting passes through a first side of the touch control region toextend to the pad region, the fourth routing passes through a secondside of the touch control region to extend to the pad region, and thefirst side and the second side are two different sides of the touchcontrol region.
 9. The touch panel according to claim 8, wherein thefirst routing passes through first side along a first direction, and thefourth routing passes through the second side along an oppositedirection to the first direction.
 10. The touch panel according to claim1, wherein one of the first electrode and the two second sub-electrodesand the third electrode are two tessellation electrodes, and the twotessellation electrodes are respectively a first tessellation electrodeand a second tessellation electrode; the first tessellation electrodehas a branch between two first points at a first side thereof, such thata perimeter of the branch between the two first points is greater than alinear distance between the two first points; the second tessellationelectrode has a dent between two second points at a second side thereof,such that a perimeter of the dent between the two second points isgreater than a linear distance between the two second points; the branchintervenes with the dent with a gap in between.
 11. The touch panelaccording to claim 1, wherein the two second routings respectivelylocate at two sides of the first electrode.
 12. The touch panelaccording to claim 11, further comprising a fourth electrode formed atthe conductive layer; wherein the first electrode is located between thesecond electrode and the fourth electrode, and the fourth electrodecomprises two fourth sub-electrodes respectively connected to the twosecond routings.
 13. The touch panel according to claim 1, furthercomprising: a plurality of staggered pads, formed at the conductivelayer, comprising a first pad and a second pad; wherein the first pad isconnected to the first electrode via the first routing, and the secondpad is connected to the two second sub-electrodes via the two secondroutings.
 14. The touch panel according to claim 1, further comprising:a first pad, formed at the conductive layer; wherein two ends of thefirst routing are respectively connected to the first pad and the firstelectrode; a third pad, formed at the conductive layer; and a thirdrouting, formed at the conductive layer, located at a same side of thefirst routing as the third electrode to connect the third pad to thethird electrode.
 15. The touch panel according to claim 14, furthercomprising: a fourth electrode, formed at the conductive layer; whereinthe fourth electrode and the third electrode are located at twodifferent sides of the first routing; and a fourth routing, formed atthe conductive layer, located at a same side of the first routing as thefourth electrode to connect the third pad to the fourth electrode. 16.The touch panel according to claim 1, further comprising: a floatingdummy electrode, formed at the conductive layer, located between twoamong the first electrode, the second electrode and the third electrode,and insulated from the first electrode, the second electrode and thethird electrode.
 17. A touch panel, comprising: a first electrode,formed at a conductive layer, comprising a first border having a firstjigsaw section extending between two first points at the first border;and a second electrode, formed at the conductive layer, comprising asecond border having a second jigsaw section extending between twosecond points at the second border; wherein, the second jigsaw sectionprotrudes between the two first points, and the first jigsaw sectionprotrudes between the two second points.
 18. The touch panel accordingto claim 17, wherein the first electrode and the second electroderespectively connect to a driver and a sensor.
 19. The touch panelaccording to claim 17, wherein the border of the second electrodefurther has a fourth jigsaw section, and the touch panel furthercomprises: a third electrode, formed at the conductive layer, comprisinga third border having a third jigsaw section extending between two thirdpoints at the third border; wherein, the fourth jigsaw section protrudesbetween the two third points.
 20. The touch panel according to claim 17,further comprising: a floating dummy electrode, formed at the conductivelayer, located between the first electrode and the third electrode, andinsulated from the first electrode and the third electrode.